Possibly US specific: Artificial Red/Yellow/Blue dyes in food. I hope..

Hopefully, single use plastics would be a ridiculous thing in the future, maybe they will look back at it like we look back at asbestos.

Here is a funny asbestos ad from the past

In 20 years we will be shocked that we lived with all of the unnecessary fossil fuel usage while the world was slowly boiling. Oops, we fucked up the biosphere, guess we'll just move to mars and eat fucking solar rays ffs.

20 years is a bit short but... Eating animals will be regarded as highly immoral, "but everyone knew those animals suffered, right?", on the same level as we now judge slavery

porn was freely available and could be purchased at stores in many parts of the US.

sex toys were widely available and could be purchased from the comfort of your own sex swing.

now we have Qualuviagra which not only increases the size of your penis* but also makes you forget all about your low-T*

*studies shown that penis size temporarily increases but long-term use will actually shrink it. prolonged use can induce Baby-Dick Syndrome (BDS). Abuse of the product is considered a class 1 felony and you will be registered as a sex offender unless you're a registered Republican.

*low T is a myth falsified by global warming scientists in order to confuse and belittle Republicans with BDS. If you are taking Qualuviagra to treat low-T, reach out to your nearest MediRogan for details about having low-T.

I'm not a doctor.

But possibly there will be a better way to treat/cure cancer, and thus chemotherapy will be seen as similar to how we today see bloodletting or lobotomy.

Allowing Israel to get away with shit.

Teflon

Wiping our asses with PAPER.

Probably wrapping and cooking our food in volatile plastics.

What the hell, I misread the OP's title and thought it was about stuff that was common 20 years ago which is no longer normal... I was very confused with everybody else's answers lmao.

Sadly I can't think of an answer for the thread, so downvote/upvote at your will 😂

Using plastic to contain food. I'm always a little turned off when a takeout place uses plastic containers as opposed to the paper or foil ones. Plus it's terrible to animals, especially marine life such as dolphins.

People probably wouldn't believe we sold water in plastic water bottles or shopped with disposable plastic bags.

The state of the air we breathe indoors.

Antibiotics

I'd say traditional (linear) television. Still common enough, though even today it's clearly on the way out.

Social media, at least in the current form.

I'm afraid the answer will be air conditioning and indoor plumbing.

I'm hoping the answer is money.

It won't be, but I can hope.

I wonder if more people will go back to flip phones. Some of my younger church friends are tired of smartphones and the amount of time and energy they suck out of your life and negative energy social media puts into it, and are switching back to flip phones. It's surprising to see young people using them.

Food industry in current form

For most of us in the US: Having an endless supply of cheap, clean fresh water

As someone who has grown up watching Card Catalogs lose to electronic search, Internet Directories lose to electronic search, photo albums lose to electronic search, Curated Network Televisions lose out to ellectronic search, large-scale advertising lose out to electronic search...

I don't know. But whatever it is, 20 years from now, we'd say "Why didn't you have a search engine that could do that for you?"